Outline. Assessing health data. Record keeping basics Case example & staffing. Neonatal calf diarrhea. Components of a multifactorial disease process

Transcription

1 Preventing disease outbreaks: records and oversight Outline c I feel GREAT!! Agenda Assessing health data 50% Subclinical Record keeping basics Case example & staffing 30% 10% Dec Clinical Aug Need effective management because Neonatal calf diarrhea Components of a multifactorial disease process Calf factors Immunity and Nutritional status Environmental factors Over stocking, lack of cleanliness Cold ambient temperature Pathogen factors Virulence Overwhelming exposure calf barn bug Peak prevalence ETEC The common bugs Salmonella spp. Coccidia. Cryptosporidium parvum Coronavirus Rotavirus Clostridium perfringens Age (d): *Nutritional Errors

2 Uses screening techniques to help determine etiology Help develop diagnostic and preventive strategies bacterial vs. viral vs. nutritional Preventive and therapeutic efficacy Human health hazards Fecal pathogens Fecal Diagnostics Test 6 10 affected & unaffected Untreated Age appropriate Know case definition Enterichek Rota, Corona, E. coli K99 (F5) & Crypto Cryptosporidium 15 minutes Goals: Salmonella 0% Laboratory tests for Salmonella Rota/Corona/Crypto 30% Date CalfID Temp Clinical Disease 21-Nov ElevatedTemperature_Diarrhea 21-Nov ElevatedTemperature_Diarrhea 21-Nov ElevatedTemperature_Diarrhea 21-Nov ElevatedTemperature_Diarrhea 21-Nov ElevatedTemperature_Navel 21-Nov RespiratoryDisease_Diarrhea 21-Nov RespiratoryDisease_Diarrhea 21-Nov RespiratoryDisease_Otitis 21-Nov RespiratoryDisease_Otitis 21-Nov RespiratoryDisease_Otitis_Diarrhea 21-Nov ElevatedTemperature 21-Nov ElevatedTemperature_Diarrhea 21-Nov ElevatedTemperature_Diarrhea 21-Nov RespiratoryDisease 21-Nov RespiratoryDisease 21-Nov RespiratoryDisease_Otitis Date CalfID Temp Clinical Disease 21-Nov RespiratoryDisease 21-Nov RespiratoryDisease 21-Nov RespiratoryDisease_Otitis 21-Nov RespiratoryDisease_Otitis 21-Nov RespiratoryDisease_Otitis 21-Nov RespiratoryDisease_Otitis_Diarrhea 21-Nov ElevatedTemperature 21-Nov ElevatedTemperature 21-Nov ElevatedTemperature 21-Nov ElevatedTemperature_Diarrhea 21-Nov ElevatedTemperature_Diarrhea 21-Nov ElevatedTemperature_Diarrhea 21-Nov RespiratoryDisease_Otitis 21-Nov RespiratoryDisease_Otitis 21-Nov RespiratoryDisease_Otitis_Diarrhea Salmonella (typhimurium, newport, dublin) Diarrhea Salmonellosis Septicemia Pneumonia Culture PCR (abortion) ( milk) Intestinal Casts Salmonella (typhimurium, newport, dublin) Diarrhea Septicemia Pneumonia Culture PCR Deep nasal pharyngeal swabs

3 S. dublin Invasive septicemia develops quickly Half of herds become endemic Latent carriers, intermittent shedding Identify early Slow to interact Slow to get up Less interactive Can t stand Fever without help Increased respiratory rate Dehydration Enlarged vessels in the whites of the eye (injected sclera) Factors for reducing S. Dublin in calves Reduce susceptibility Reduce exposure Identify & treat early Factors for reducing S. Dublin in calves Don t buy from infected herds! Good maternity management Don t overcrowd, no sick cows Add bedding weekly, clean 2x/m Calve in maternity area, not in pre fresh pen Minimize those involved in colostrum management Provide adequate colostral IgG to heifer AND bull calves Solid dividers between groups of calves Test and cull adult carriers after young calves are negative Empty Clean Disinfectant Designated personnel Protective clothing Endemic disease in dairy herds Outbreak in calf rearing facility Who is your Team? Identify the players Assign the roles Discuss expectations AVOID UNDERSTAFFING Labor Requirements Intuitive Cost of Production Analysis 30 Wisconsin locations Does management know # calves per FTE? 1 FTE per 100 calves Routine chores 0.5 FTE per 100 calves Health care Farm Type Calves/Hr Calves/Day Tie stall Free stall Calf Raiser Average Work Day = 8 hours (UW-Extension, 2013)

4 Competent, Compliant, Consistent* Retrain Verify protocol adherence Hire Record events Train Dr. Dave Rhoda, 2014* Dr. John Ferry, 2004 # NAHMS 2011: Monitoring & Oversight Smaller operations have good opportunity to improve calf H&W by improving basic monitoring and oversight Monitoring and Oversight Use objective indicators of success Is program working, breaking, or broken Critical control points Sanitation Passive transfer Nutritional density calf death by weekly cohort Consistency Disease detection & Tx Group size Stocking density Vaccination 80% 60% 40% 20% 0% 1 ID & cull S. dublin carriers % died % died Treatment records Paper Electronic Herd management software Automatic calf feeder software Record keeping 8/26/15 11:23:47 AM : Pneumonia Nuflor 6mL SQ (BF: April1) Treatment record Paper Electronic Permanent record All mgmt events during life Paper or Electronic Record keeping Electronic records make oversight practical

5 Designing treatment records Designing treatment records Designing treatment records ID ID Case of Perceived Treatment Failure Calf ID Arrival date Spatial location Arrival date Spatial location Knowns: Drug name, date, duration Unknowns: Condition or severity of condition, Dose, Route Condition Drug Date ID Condition Drug Dose Route Duration (#/total) Withdrawal Initials Pneu Draxxin 2cc SQ 1/1 18d TO Drug name Date drug given X implies final dose Plan ahead: capture data for routine monitoring as well as outbreak investigations (proper drug use & food safety) Drug name DDx: Wrong disease (?) Date drug given Treating the incurable (?) Wrong spectrum, dose, route (?) X implies final dose Antibiotic resistance (?) Plan ahead: capture data for routine monitoring as well as outbreak investigations (proper drug use & food safety) Dose Route Duration Initials Withdrawal Details - need to know what the person thinks s/he is treating and what is actually administered. *withdrawal times Designing treatment records Calf ID Condition Drug Dose Route Duration Initials Withdrawal Permanent Records Record all disease episodes Use single, specific event to record each disease Record the same thing, the same way, every time Health events in the permanent record Accurate Consistent Informative Drs. John Wenz and Sarah Giebel

6 Verification Get dirty!!! Go look! Competency Compare treatment sheets at regular, defined intervals Interval determined by size (monthly, 2 4x/year),new hire Does ILLMISC tell you anything about the condition of the animal on that day? ID Scours Navel Pneumonia DVM 1 Scours 2 x Pneumonia 3 x 4 x & joint 5 x & Pneumonia Dr. Rhoda Verification Get dirty!!! Go look! Competency Compare treatment sheets at regular, # defined intervals Detection Rate = # Interval determined by size (monthly, 2 4x/year),new hire ID Scours Navel Pneumonia DVM 1 Scours 2 x Pneumonia 3 x 4 x & joint 5 x & Pneumonia Verification Consistency and Compliance Compare 1 st treatment drug usage at regular, defined intervals Interval determined by size (monthly, 2 4x/year), new hire Case 1 st 2 nd 1 TMS Bay 2 Bay Excenel 3 Bay 4 TMS Excenel 5 TMS Farm Protocol: 1 st Tx: TMS 2 nd Tx: Excenel Baytril (enrofloxacin) cannot be used in an extra-label manner. Scours is extra-label. Verification Farm Protocol: 1 st Tx: Nuf 2 Consistency and Compliance nd Tx: Baytril 3 rd : Zactran Compare 1 st treatment drug usage at regular, defined intervals Interval determined by size (monthly, 2 4x/year), new hire Case 1 st 2 nd 3 rd 1 Nuf Baytril 2 Nuf Nuf Zactran 3 Bay 4 Zac Baytril 5 Zup

7 Verification Get dirty!!! Competency More than a walk through Compare treatment sheets at regular, defined intervals Interval determined by size (monthly, 2 4x/year), new hire ID Scours Navel Pneumonia DVM 1 Scours 2 x Pneumonia 3 x 4 x & Joint 5 x # Detection Rate = # Respiratory disease Enzootic vs. Epizootic 3 17% but can be up to 90% Case fatality rates = 2 9% 20% of pre weaning deaths 45% of post weaning deaths Usually identified at 3 5 wk Possible in first week Most treatments at 5 10 wk Pasteurella multocida, Mycoplasma bovis, Mannhemia haemolytica BRSV, PI3, IBR, BVD, corona Negative sequelae of BRD Associated with Death Poor growth Dystocia Poor adult performance Proactive plan of attack 2 fronts Appetite as a proxy for illness Clinical signs 1. Daily observations Isolated (standing or lying) Off feed Visual, computer* Lethargic Labored breathing Excessive coughing Profuse diarrhea Blood 2. Twice weekly screening Define the following Who is looking? What is looked for? When? How often? What is the response? How is it recorded? How will that info be used? Fever Depression Inappetance Discharge from nose/eyes Cough Droopy ears Jasper & Weary. JDS. 2002

8 Define the following Who is looking? What is looked for? When? How often? What is the response? Score 2 in 2 categories How is it recorded? How will that info be used? 2. Screening Exam Thoracic Ultrasonography Portable linear rectal transducer used for pregnancy Alcohol only No clipping hair Assess outcomes at defined intervals Mortality Morbidity Age of onset Relapses Detection rates Duration of disease Response to treatment Etiology Distribution of BRD subtypes at onset 9% 10% 12% 41% 28% N = 350 Morbidity 100% preweaning URTI SCP - Lobular CP - Lobular SCP - Lobar CP - Lobar Cross sectional disease prevalence

9 Cross sectional disease prevalence Define who is affected Take Home Messages URT/Lobular (Viral) disease Lobar (bacterial) Find out if you are understaffed in the calf barn Is it impacting the ability to detect, treat, or document disease? Assess your health event recording system Is it capturing what you need? Find opportunities by looking for protocol drift within the records Monitor specific calf level health outcomes that will direct changes Establish a daily routine for finding individual sick calves Establish a screening examination 2x weekly to identify subtle cases Use fecal and respiratory diagnostics to aid disease management Thank you! ollivett@wisc.edu